Multiple Commercial AC vents and unidentified vents outside of condo window

[Angela Ding]

HI - I'm considering buying a small condo in Manhattan but the window is facing multiple unidentified vents, seller told me it's all AC vents from 1 restaurant and 1 dry cleaner business on the ground floor. I'm concerned if those vents are going to noisy and are they also exahust vents from kitchen of the restaurants below. 

Is it still worthwhile to move forward with the purchase? Thanks